Global Patent Index - EP 1090504 A1

EP 1090504 A1 2001-04-11 - AUDIENCE RATING SYSTEM FOR DIGITAL TELEVISION AND RADIO

Title (en)

AUDIENCE RATING SYSTEM FOR DIGITAL TELEVISION AND RADIO

Title (de)

SYSTEM ZUR MESSUNG VON EINSCHALTQUOTEN FÜR DIGITALES FERNSEHEN UND RADIO

Title (fr)

SYSTEME DE CALCUL DU TAUX D'ECOUTE POUR TELEVISION ET RADIO NUMERIQUES

Publication

EP 1090504 A1 (EN)

Application

EP 99925594 A

Priority

  • US 9910453 W
  • US 8550198 A
  • US 28975899 A

Abstract (en)

[origin: WO9962260A1] An audience rating system for digital television and radio, using identification codes in control streams (C) of time-multiplexed digital transmissions (12). When a television set (22) or radio, that is being monitored pursuant to the system is turned on and tuned to a channel, and each time that the channel is changed, an identification code for each audio, video or auxiliary digital stream of the channel is extracted from the control stream, and recorded along with the time. The time is also recorded when the television set or radio is turned off. This data makes it possible to determine what stations, channels, and programs members of the audience being monitored are watching or listening to at any particular time.

IPC 1-7 (main, further and additional classification)

H04N 7/16

IPC 8 full level (invention and additional information)

H04H 60/37 (2008.01); H04H 60/40 (2008.01); H04N 5/00 (2011.01)

IPC 8 main group level (invention and additional information)

H04H 1/00 (2006.01)

CPC (invention and additional information)

H04N 21/44222 (2013.01); H04H 60/37 (2013.01); H04H 60/40 (2013.01); H04N 21/4104 (2013.01); H04N 21/4263 (2013.01); H04N 21/434 (2013.01)

Citation (search report)

See references of WO 9962260A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI NL PT SE

EPO simple patent family

WO 9962260 A1 19991202; AU 4184599 A 19991213; BR 9909273 A 20001121; CA 2323937 A1 19991202; EP 1090504 A1 20010411

INPADOC legal status


2003-07-30 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20021203

2001-04-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000920

2001-04-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI NL PT SE

2001-04-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: LT PAYMENT 20000920;RO PAYMENT 20000920;SI PAYMENT 20000920